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15.6 VFD INFORMATION
REFERENCE
The following information is for reference only. All of the VFD control is done by the RenewAire
system and the settings are pre-set in the factory and should not be altered.
15.6.1 ABB VFD Information
This drive is used on ERV units with VFDs. ABB ACS320 VFDs are generally supplied in indoor
units and ABB N831 VFDs in rooftop units.
FIGURE 15.5.0 MODEL ACS320 SHOWN
FIGURE 15.5.1 VFD KEYPADS IN EBOX
15.6.1.1 ABB VFD Parameters
VFD Parameters are instructions that the Variable Frequency Drives follow. They are factory set
and should not be changed unless you are instructed to do so by TSS.
To view the VFD’s Parameters from the keypad, press the “MENU” softkey. Press up/down
arrows to highlight PARAMETERS, then select it by pressing the “ENTER” softkey.
15.6.1.2 View All Parameters
VFD must be powered up to view the parameters.
UP/DOWN BUTTON
SOFTKEY
HELP KEY
"HAND"
SOFTKEY
"AUTO"
"OFF"
FIGURE 15.6.2 ABB KEYPAD BUTTONS
